For the mechanically-minded, non-powered types: not electronic -- no batteries -- completely opto-mechanical. Takes patience and practice, but you can get accuracy to minutes of horizontal and vertical angle.

The essential functions of the Wind, with more capacity to inform and warn. Enhanced tools help you forecast weather, set warning signals, and let you time, track, log and download more performance data.

The Canon S95 is a versatile but inexpensive camera with a global shutter, so it works well with on a UAV platform. Run the CHDK intervalometer to take pictures at regular intervals. We have three of these, one unaltered, the other two with the

The 300-g dji Spark can't be programmed to fly autonomously, but it has a decent camera that can be used to map using GCPs and manual flying even with no GPS. The procedure uses Free-Flight mode in Pix4Dcapture, which triggers the camera at speci

The Leica Builder 503 Total Station is a relatively easy-to-use instrument, but has exceptional accuracy: 3 seconds of angle horizontally and vertically. See the SFSU Guide for a shortened version of the manual focused on our uses, which are goin

The MicaSense RedEdge 5-band sensor was designed primarily for precision agriculture applications, where farmers can look for moisture and other stress on their fields, but also works well for vegetation mapping. It captures narrow bands of blue

A small, rugged GNSS receiver capable of submeter accuracy in real time when used with SBAS correction -- no display: connects via Bluetooth to a tablet or phone (Android, iOS, or Windows) running apps: